Hostname: page-component-8448b6f56d-qsmjn Total loading time: 0 Render date: 2024-04-23T17:48:33.877Z Has data issue: false hasContentIssue false
  • English
  • Français

Galactic dust and extinction

Published online by Cambridge University Press:  14 August 2015

Gösta Lyngå
Gösta Lyngå*
Affiliation:
Lund Observatory, Sweden

Extract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

The ratio R between visual extinction and colour excess, is slightly larger than 3 and does not vary much throughout our part of the Galaxy. The distribution of dust in the galactic plane shows, on the large scale, a gradient with higher colour excesses towards 1=50° than towards 1=230°. On the smaller scale, much of the dust responsible for extinction is situated in clouds which tend to group together. The correlation between positions of interstellar dust clouds and positions of spiral tracers seems rather poor in our Galaxy. However, concentrated dark clouds as well as extended regions of dust show an inclined distribution similar to the Gould belt of bright stars.

Type
II. THE DISK COMPONENT
Information
Symposium - International Astronomical Union , Volume 84: The Large-Scale Characteristics of the Galaxy , 1979 , pp. 87 - 92
Copyright
Copyright © Reidel 1979 

References

Bok, B.J.: 1977 Publ. Astron. Soc. Pacific 89, p. 597 Google Scholar
Crézé, M.: 1972 Astron. Astrophys. 21, p. 85 Google Scholar
Dodd, R.J., Brand, P.W.J.L.: 1975 Astron. Astrophys. Suppl. 25, p. 519 Google Scholar
Egret, D., Lyngå, G., Ochsenbein, F.: 1978 In preparation Google Scholar
Eriksson, P.-I.: 1978 Uppsala Astron. Obs. Rept. No. 11 CrossRefGoogle Scholar
FitzGerald, M.P.: 1968 Astron. J. 73, p. 983 Google Scholar
FitzGerald, M.P.: 1974 Astron. Astrophys. 31, p. 467 Google Scholar
FitzGerald, M.P., Moffat, A.F.J.: 1976 Sky Telesc. 52, p. 104 Google Scholar
Heiles, C.: 1976 Astrophys. J. 204, p. 379 Google Scholar
Holmberg, E.B.: 1958 Meddelanden Lunds Astron. Obs., Ser. II, No. 136 Google Scholar
Holmberg, E.B.: 1974 Astron. Astrophys. 35, p. 121 Google Scholar
Hubble, E.: 1922 Astrophys. J. 56, p. 162 Google Scholar
Humphreys, R.M.: 1976 Publ. Astron. Soc. Pacific 88, p. 647 Google Scholar
Johnson, H.L.: 1968 In Kuiper, Stars and Stellar Systems Vol VII, p. 167 Google Scholar
Knapp, G.R., Kerr, F.J.: 1974 Astron. Astrophys. 35, p. 361 Google Scholar
Knude, J.K.: 1977 Astrophys. Letters 18, p. 115 Google Scholar
Kron, G.: 1977 Bull. Am. Astron. Soc. 9, p. 581 Google Scholar
Lucke, P.B.: 1978 Astron. Astrophys. 64, p. 367 Google Scholar
Lynds, B.T.: 1962 Astrophys. J. Suppl. 7, p. 1 CrossRefGoogle Scholar
Lynds, B.T.: 1970 IAU Symp. No. 38, p. 26 Google Scholar
Lyngå, G.: 1976 Astron. Astrophys. 46, p. 369 Google Scholar
Lyngå, G.: 1977 Astron. Astrophys. 54, p. 71 Google Scholar
Malmquist, K.G.: 1920 Meddelanden Lunds Astron. Obs. II, No. 22 Google Scholar
Mathewson, D.S., van der Kruit, P.C., Brouw, W.H.: 1972 Astron. Astrophys. 17, p. 468 Google Scholar
McCuskey, S.W.: 1976 IAU Trans. XVIA, part 3, p. 44 Google Scholar
Moffat, A.F.J., Schmidt-Kaler, Th.: 1976 Astron Astrophys. 48, p. 115 Google Scholar
Nandy, K., Thompson, G.I., Jamar, C., Monfils, A., Wilson, R.: Astron. Astrophys. 51, p. 63 Google Scholar
Neckel, Th.: 1967 Veröffentl. Heidelberg-Königstuhl 19 Google Scholar
Olson, B.I.: 1975 Publ. Astron. Soc. Pacific 87, p. 349 Google Scholar
Penston, M.V., Hunter, J.K., O'Neill, A.: 1975 Monthly Notices Roy. Astron. Soc. 171, p. 219 Google Scholar
Sandqvist, Aa.: 1977 Astron Astrophys. 57, p. 467 Google Scholar
Schalén, C.: 1975 Astron. Astrophys. 42, p. 251 Google Scholar
Scheffler, H.: 1967 Z. Astrophys. 65, p. 60 Google Scholar
Serkowski, K., Mathewson, D.S., Ford, V.L.: 1975 Astrophys. J. 196, p. 261 Google Scholar
Smyth, M.J., Nandy, K.: 1978 Monthly Notices Roy. Astron. Soc. 183, p. 215 Google Scholar
Sparke, L.S.: 1977 Astron. Astrophys. 56, p. 307 Google Scholar
Turner, D.G.: 1976 Astron. J. 81, p. 1125 Google Scholar
Turon, P., Mennessier, M.O.: 1975 Astron. Astrophys. 44, p. 209 Google Scholar
Whittet, D.C.B.: 1977 Monthly Notices Roy. Astron. Soc. 180, p. 29 Google Scholar